Combination-lock.



G. A. NEWMAN.

COMBINATION LOCK.

APPLlCATlON FILED NOV. 28. 19m.

1, 181 ,790. Patented May 2, 1916.

2 SHEETS-SHEET 1.

in/1mm 7 QA Veu maW G. A. NEWMAN.

COMBINATION LOCK.

APPLICATION FILED NOV. 28. 1914.

1,181 ,790. Patented May 2, 1916.

2 SHEETS-SHEET 2.

rm: COLUMBIA FLANOGRAPH co.. WASHINGTON. LI. c.

UNITED STATES PATENT OFFICE. I

GEORGE A. NEWMAN, OF JERSEY CITY, NEW JERSEY, ASSIGNOR 0F ONE-HALF T0PETER DEGENHARDT, OF JERSEY CITY, NEW JERSEY.

COMBINATION-LOCK.

Specification of Letters Patent.

Patented May 2, 1916.

Application filed November 28, 1914. Serial No. 874,476.

To all whom it may concern:

Be it known that I, GEORGE A. NEWMAN, a citizen of the United States,residing at Jersey City, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements inCombination-Locks; and I do hereby declare the following to be a full,clear, and exact description of the invention such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in combinationlocks, and has for its principal object to simplify and cheapen theconstruction of such locks.

Another object of the invention is to provide an eflicient lock in whichit is impossible to remove the shackle without first setting up theproper combination.

With these and other objects in view, the invention consists in thenovel combination and arrangement of parts which will be fully set forthin the following specification and accompanying drawings, in which,

Figure 1 is a vertical sectional view of a lock constructed inaccordance with this invention showing the same in its locked position,Fig. 2 is a view similar to Fig. 1 showing the device in its unlockedposition, Fig. 3 is a vertical sectional view taken on line 33 of Fig.1, Fig. 1 is a top plan view of the lock casing, the shackle being insection to more clearly illustrate the details of construction, Fig. 5is a horizontal sectional view taken on line 5-5 of Fig. l, and Fig. 6is an enlarged detail sectional view of the lower bearing for theshackle.

Referring now to the drawings by characters of reference, the numeral 1designates the lock casing which is preferably rectangular and formed atits upper end with the apertures 2 which are in longitudinal alinement.A plurality of apertures 3 are formed in the side walls of the casingand these apertures are opposite each other and designed to receive thelocking disks, which will be more fully hereinafter described.

The shackle, which is designated generally by the numeral 4, comprisesthe U shaped body 5, having formed thereon the short arm 6 and long arm7. This short arm 6 is provided with a pair of spaced lugs 8, the use ofwhich will appear as the description proceeds. A plurality of similarlugs 9 are formed on the arm 7 at spaced intervals and are arranged tocooperate with the locking disks hereinbefore mentioned.

The locking disks hereinbefore mentioned are designated by the numeral10, and comprise the circular bodies 11 having formed therein thecentral apertures 12, and these bodies are also provided with thenotches 13 which open into the apertures 12 as clearly shown in Fig. 5.A plurality of characters 14 are formed near the periphery of each ofthe disks 10 and are arranged to enable the user to determine theposition of the disks.

Interposed between the disks 10 are the coil springs 15 which aredesigned to bear against the disks and hold the same against accidentalmovement. Formed between the walls of the casing 1 is the bearingelement 16 having formed therein the aperture 17 which has openingthereinto the groove 18, which groove is arranged to aline with thelowermost lug 9 when the lock is in its locked position.

It will be apparent from the foregoing that in use when it is desired tolock the device, the shackle is hooked over the article which is to bekicked and then turned so that it lies parallel with the longitudinalplane through the apertures 2, at which time the same is forced inwardlythereby assuming the position illustrated in Fig. 1. In pushing theshackle inwardly it will be apparent that the lugs 9 and 8 will passthrough their respective slots 13 until the lowermost lug 9 rests in theslot 18 and one of the lugs 8 will rest beneath the disk and then uponturning the disks it will be apparent that the alinement of the severalgrooves 13 with the groove 18 will be destroyed and any movement of theshackle prevented. When it is desired to unlock the device the personknowing the combination, by setting up the proper characters 14 whichare visible bevond the edges of the lock, it will be evident that theseveral grooves will be alined and 100 the shackle may be withdrawn.

While in the foregoing there has been shown and described the preferredembodiment of this invention, it is to be understood that such changesmay be made in the 105 combination and arrangement of parts as will fallwithin the spirit and scope of the invention as defined in the appendedclaim.

What is claimed is:

A lock of the class described comprising 110 a casing provided at itsupper end with a pair of spaced apertures, the side Walls of said casingprovided'with a plurality of apertures at spaced distance apart, aplurality of disks provided on their upper faces adjacent theirperiphery With a plurality of characters positioned through the openingsin the side walls of the casing being in direct alinement with theopenings in the top Wall thereof, said disks provided with centralopenings and having recesses communicating With said openings, a shacklehaving a longer and shorter arm, the longer arm provided with aplurality of spaced lugs formed at intervals and arranged to 006peratewith the openings and recesses in the disks, a bearing member formedbetween the side walls of said casing adjacent the bottom thereof, theupper face of said bearing member provided with an aperture, a groovecommunicating with said aperture adapted to receive the lowermost lug ofthe longer arm of the shackle when in a locked position, lugs formed onthe end of the shorter arm at spaced distance apart, one of said lugsadapted to be positioned below and one HbOXe the disk when in a lockedposition, springs surrounding the longer arm of said shackle anddisposed between the locking disks holding the said disksagainstaccidental rotation, substantially as described.

I n testimony whereof I afiix my signature.

GEORGE A. NEWMAN. \Vitnesses:

PETER DEGENHAHDI, \VM. G. MEYER.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. C.

